Question

Frctiile 4/5 si x/20 sunt echivalente pentru: a) x= 10 b) x=12 c) x=14 d) x=16 e) x=20

Answer 1

x=80:5=16 deci raspunsul e d)x=16

Answer 2

$\frac{4}{5} = \frac{x}{20}$
$5x = 80$
x=16
Raspuns: d)